Intercomparison of micro- and nanodosimetry Monte Carlo simulations: an approach to assess the influence of different cross-sections for low-energy electrons on the dispersion of results
Autor(in); Institution
Villagrasa, Carmen; Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, FRANCE; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Rabus, Hans; 8, Medizinphysik und metrologische Informationstechnik, PTB-Berlin; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Baiocco, Giorgio; University of Pavia, Physics Department, Pavia, ITALY; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Perrot, Yann; Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, FRANCE; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Parisi, Alessio; Belgian Nuclear Research Center, Mol, BELGIUM; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Struelens, Lara; Belgian Nuclear Research Center, Mol, BELGIUM; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Qiu, Rui; Tsinghua University, Department of Engineering Physics, Beijing, CHINA; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Beuve, Michaël; Université Claude Bernard Lyon 1, Institut de Physique Nucléaire de Lyon, Villeurbanne, FRANCE; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Poignant, Floriane; Université Claude Bernard Lyon 1, Institut de Physique Nucléaire de Lyon, Villeurbanne, FRANCE; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Pietrzak, Marcin; National Centre for Nuclear Research, Otwock-Swierk, POLAND; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Nettelbeck, Heidi; 6.3, Strahlenschutzdosimetrie, PTB-Braunschweig; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, GERMANY
Microdosimetry ; Nanodosimetry ; uncertainty ; Monte Carlo Track structure code ; cross-sections ; intercomparison
Zusammenfassung
An intercomparison of microdosimetric and nanodosimetric quantities simulated Monte Carlo codes is in progress with the goal of assessing the uncertainty contribution to simulated results due to the uncertainties of the electron interaction cross-sections used in the codes. In the first stage of the intercomparison, significant discrepancies were found for nanodosimetric quantities as well as for microdosimetric simulations of a radiation source placed at the surface of a spherical water scoring volume. This paper reports insight gained from further analysis, including additional results for the microdosimetry case where the observed discrepancies in the simulated distributions could be traced back to the difference between track-structure and condensed-history approaches. Furthermore, detailed investigations into the sensitivity of nanodosimetric distributions to alterations in inelastic electron scattering cross-sections are presented which were conducted in the lead up to the definition of an approach to be used in the second stage of the intercomparison to come. The suitability of simulation results for assessing the sought uncertainty contributions from cross-sections is discussed and a proposed framework is described.
Themenbereich der Metrologie
Ionisierende Strahlung
Zitierung
Villagrasa, C., Rabus, H., Baiocco, G., Perrot, Y., Parisi, A., Struelens, L., Qiu, R., Beuve, M., Poignant, F., Pietrzak, M., & Nettelbeck, H. (2022). Intercomparison of micro- and nanodosimetry Monte Carlo simulations: an approach to assess the influence of different cross-sections for low-energy electrons on the dispersion of results. Radiation Measurements, 150, 1–11. https://doi.org/10.1016/j.radmeas.2021.106675
